Goodwill, Other Intangible Assets And Intangible Liabilities - (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 28, 2014
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	$ 801,400	$ 801,400
Goodwill	3,946,481	3,918,136
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	1,897,572	1,855,483
Intangible assets, accumulated amortization	(356,083)	(259,089)
Intangible assets subject to amortization, net	1,541,489	1,596,394
Total other intangible assets, net (excluding goodwill)	2,342,889	2,397,794
Total goodwill and other intangible assets	6,289,370	6,315,930
Television and Entertainment
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	801,400	801,400
Goodwill	3,601,300	3,601,300
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, net	1,269,189	1,352,867
Total goodwill and other intangible assets	5,671,889
Digital and Data
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	0	0
Goodwill	345,181	316,836
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, net	272,300	243,527
Total goodwill and other intangible assets	617,481
FCC Licenses
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	786,600	786,600
Trade Names
Indefinite-lived Intangible Assets [Line Items]
Other intangible assets not subject to amortization	14,800	14,800
Affiliate Relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	212,000	212,000
Intangible assets, accumulated amortization	(33,125)	(26,500)
Intangible assets subject to amortization, net	$ 178,875	185,500
Affiliate Relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Affiliate Relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Advertiser relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 168,000	168,000
Intangible assets, accumulated amortization	(52,500)	(42,000)
Intangible assets subject to amortization, net	$ 115,500	126,000
Advertiser relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	8 years
Advertiser relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	8 years
Network Affiliation Agreements
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 362,000	362,000
Intangible assets, accumulated amortization	(71,307)	(50,485)
Intangible assets subject to amortization, net	$ 290,693	311,515
Network Affiliation Agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	5 years
Network Affiliation Agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Retransmission Consent Agreements
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 830,100	830,100
Intangible assets, accumulated amortization	(151,935)	(106,897)
Intangible assets subject to amortization, net	$ 678,165	723,203
Retransmission Consent Agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	7 years
Retransmission Consent Agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	12 years
Other customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 115,952	99,528
Intangible assets, accumulated amortization	(17,644)	(12,632)
Intangible assets subject to amortization, net	$ 98,308	86,896
Other customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	3 years
Other customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Content databases
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 135,569	122,400
Intangible assets, accumulated amortization	(17,990)	(13,001)
Intangible assets subject to amortization, net	$ 117,579	109,399
Content databases | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	5 years
Content databases | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	16 years
Other Technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 47,711	41,385
Intangible assets, accumulated amortization	(6,785)	(4,022)
Intangible assets subject to amortization, net	$ 40,926	37,363
Other Technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	4 years
Other Technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	10 years
Trade names and trademarks
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 14,423	9,300
Intangible assets, accumulated amortization	(1,011)	(597)
Intangible assets subject to amortization, net	$ 13,412	8,703
Trade names and trademarks | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	3 years
Trade names and trademarks | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	15 years
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross	$ 11,817	10,770
Intangible assets, accumulated amortization	(3,786)	(2,955)
Intangible assets subject to amortization, net	$ 8,031	$ 7,815
Other Intangible Assets | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	3 years
Other Intangible Assets | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	11 years